Experimental investigation of hybrid single-electron turnstiles with high charging energy

Kemppinen, A. and Kafanov, S. and Pashkin, Yuri and Tsai, J. S. and Averin, D. V. and Pekola, J. P. (2009) Experimental investigation of hybrid single-electron turnstiles with high charging energy. Applied Physics Letters, 94 (17). -. ISSN 0003-6951

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Abstract

We present an experimental study of hybrid turnstiles with high charging energies in comparison to the superconducting gap. The device is modeled with the sequential tunneling approximation. The backtunneling effect is shown to limit the amplitude of the gate drive and thereby the maximum pumped current of the turnstile. We compare results obtained with sine and square wave drive and show how a fast rise time can suppress errors due to leakage current. Quantized current plateaus up to 160 pA are demonstrated.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics Letters
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
57820
Deposited By:
Deposited On:
28 Aug 2012 15:29
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Nov 2020 11:54